game theory perspectives
- system -- (formal) set of rules
- relation -- between player and game (affectionate)
- context -- negaotiable relation with 'real world'
dictionary

classic game model
- rules: formal system
- outcome: variable and quantifiable
- value: different valorisation assignments
- effort: in order to influence the outcome
- attachment: emotionally attached to outcome (hooked)
- consequences: optional and negotiable (profit?)

rules vs fiction
- Game fiction is ambiguous, optional and imagined by
the player in uncontrollable and unpredictable ways, but the emphasis
on fictional worlds may be the strongest innovation of the video game.

reference(s)
Jesper Juul
half-real
Video Games between Real Rules and Fictional Worlds
MIT Press 2005
